Grain-scourer.



No. 660,205. Patented Oct. 23, I900.

0. A. SHONBECK.

GRAIN SCUUBEB. (Application filed Apr. 23, 1897. Renewed Mn. 29, 1900.)

(No Model.) 3 Sheets-Sheet III/III,

Wzinesses. u I I ante?" N0. 660,205. Patented Oct. 23, I900. 0. A.SHUNBECK.

GRAIN SCOURER.

(Application filed Apr. 28, 1897. Renewed Km. 99, 1900.)

(No MMIGL) 3 Sheets-Sheet 2.

I m\\\\\\\\\\\\\\\\\\\\\\\s fi wen tor a? avg/M No. 660,205. PatentedOct. 23, I900. 0. A. SHUNBECK.

GRAIN SCOUBER.

(Applicatiqn filed Apr. 23, 1897. Renewed Mar. 29, 1900.) (N0."M0 3Shets$heet 3.

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UNITED STATES PATENT OFFICE.

OKE A. SHONBECK, OF KANSAS (JITY, MISSOURI, ASSIGNOR OF ONE-HALF TOLYSANDER R. MOORE,

'JR., OF SAME PLACE;

SPECIFICATION forming part of Letters Patent No. 660,205, dated 055010815 23, 1900; 3

Application filed April 23, 1897. Renewed March 29, 1900- Serial No.10,702 (No model.)

T 60% whom it may concern Be it known that I, OKE A. SHONBECK, a citizenof the United States-of America, residing at Kansas City, in the countyof Jackson and State of Missouri, have invented certain new and usefulImprovements in Grain- Scourers; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,reference being had to to the accompanying drawings, forming a part ofthis specification.

My invention has for its objects, first, the repeated scattering of thegrain and its contact with all of the scouring-surfaces of the ingprocess to which the grain is subjected automatically within certainintervals of time; third, to regulate feed of the uncleanedgrainsimultaneously with the automatic closing of the discharge-openingsin the scouring-case, and, fourth, to discharge automatically thescoured grain from the scourers at the proper time.

My invention consists in the novel construction and combination ofparts, such as will be first fully described, and specifically pointedout in the claims.

In the drawings, Figure 1 is a view in perspective of the grain-scourerembodying the 0 invention, with a portion of the frame and dust-catchingbox broken away to show the novel parts. Fig. 2 is a horizontalsectional view of the improved scourer, taken upon line w m of Fig. 3.Fig. 3 is a vertical sectional view of the improved scourer. Fig. 4=lS adetail view in perspective of the novel grainscourer removed from theframe, showing. also the feed-receptacle for the grain broken away toshow the valved openings for the passage of the grain and theautomatically operated levers controlling the valves. Fig. 5 is a detailsectional view of a portion of the perforate scouring-case, showing thedoorand latch-bolt and lever and a sectional View of the worm-wheel andworm and also showing the latch-releasing plate in position to operatethe lever.

Similar letters of reference indicate corresponding parts in all thefigures.

A represents the frame supporting the grain -sconrer, consisting of thehorizontal scourin -bod second to re ulate the scour- C 3 i b base-beamsa a, arranged at the proper distance apart,the upright beams or CF,extend ing from each end of the beams a a, and the horizontalshaft-supporting beams c d for' the grainscourer, connected with theupper ends of the beams (1 B is a shaft extending transversely to thebeams 60 a and rotating within the journalboxes at a upon the upper sideof said beams, 60 which journal-boxes are nearly equidistant from theends of said beams a in position.

Upon the rotary shaft B is fixedly mounted a circular grain-scouringbody or wheel C, preferably composed of hard sandstone of considerablewidth. The scouring-wheel C rotates within and independently of anexterior circular case D, which is constructed as follows: At the axisand upon each side of case D is an outwardly-extended flange d, ofconsiderable width, which forms the journals for the said case, thediameter of the flange being such as to afford a large openingconcentric with the shaft B, On the inner side of flange d is a collar(1, with the inner side of which collar are connected the spokes 61which extend radially from a line drawn in the plane of the flange d toan outer rim d with which they are rigidly connected, the circumferenceof the periphery of said rim being in excess of the circumference of thescouring-wheel O, as further described.

On the inner side of each shaft-supporting beam a is a block a with theinner side of which block is rigidly connected a disk E, in

which is an opening 6 at the center, through which the shaft B ispassed. Extending around the circumference of the disk E, the

line of which circumference is slightlyin excess of the circumference ofthe flange d on 0 the case D, is an inwardly-extended annular flange e,which receives the said flange d and forms a closely-fittingjournal-bearing there for on the inner side of the spokes d and the rim(Z On each side of the case D is a circular perforated plate F, havingan opening f of the same size and opposite in position to the collar d.on the side of the said case, the outer edge of the plate F being inline circumferentially with the outer edge of the rim too (1 Theperforationsf in the side of the 2 ceases perforation inwardly, leavingthe ragged edge turned toward thestone O.

The peripheral portion of the case Dis ner sides of the plates F F andbetween the periphery of the scouring-wheel and said plate f The plate fis perforated in the same manner as the plates F F.

f is an opening f extending from one side F to the other side of saidcase E and the proper distance in length to discharge the grain, whichopening is closed" by a door or valve f which is hinged at f at one endto the edgeof the opening f transverse to the case On the outer sideportion of the door is a fixed wedge-shaped plate or cam f, the

widest portion of which cam terminates with-' in a short distance of thefree edge of the door-f Above the free edge of the door is a latch-casef, in which isa latehbolt f which bolt is caused to engage with the saidfree edge of the doorf" by a spring f With theupper end of thelatch-caseis pivotally connected one end ofa leverf which lever is also pivotallyconnected with the adjacent end of the latch bolt, the other endofsai'dlever extending a short distance outwardly beyond the line of theouter side of the latch-' case, for the purposehereinafter described.Extending around the caseEin line with one of the rims f is a circularrack G; At

one end of the frame A and journ'aledath it upon the shaft-supportingbeams a a at a point a short distance from the case E isa transverseshaftH, uponwhichshaftis a pinion h', engaging with the rack G'on caseE.

On the outer end of said shaft, extending beyond the outer side ofbeatn'ctiis a band-wheel 762. Between the side beams'a a and a a andconnected at their upper edges with the beams a a are the sides 2' i ofa dust-inclos-- ing case I, which sides extend downwardly nearly to theline of the beams a a and the lower ends inclined downwardly towardeachl other at 1" t" and is also'provided with the ends The upper portionlof the dust-inclosing case is removable from the i and bottom "itransverse beam K, secured at the endsofthe inner sides 2' i of theportion I of the dust-inclosing case and about equidistant from the"peripheral line of case E and the adjacent end 71 of said case I. Uponthe upper portion ofbeam K is a base-plate M, upon each end of whichplate are arms m m, extendingin the direction of the rotary case E, andupon'the outer ends of which arms is journaled at n In the plate a shaftN, upon which shaft, between said arms m m, isa worm-gear 91 The end ofshaft-N extends a short distance beyond the plane of the side of case Eopposite to that having the curved rack G, and upon said end is a fixedhub n upon the circumference of which hub are tiledktdlfll arms 01 Outerside of rim (i of the rotary case D and upon the segmental portion ofsaid rim, within which the door f in said case is located,are pins darranged an equal distance apart and which come into contact with theouter ends of the arms 72/ on the hub 47, of shaft N and actuatesaidshaft during the time'the portion of the rim containing a the series ofpins is passing within the radius of the hub "n on said shaft.

l Upon the bed-plate Mis a pivot-post m Above the said plate is ahorizontal wormwheel 0, which mesheswith the worm n on sjhaftN: Throughthe axis of wheel Oextends a socket 0, which receives the pivotpost m I1 Upon the upper side portion of the wormwheel 0 is a lon-gitudinally-slotted latch-releasing plate'P, secured 'adjustablyto saidwor1n-wl1eel'by the adj usting-screw 19, the forward end of which plateis extended a short distance beyond the periphery of said wormwheel andwithin the path in the circle of r0- tation of case D'described by theouter end of the latch-bolt-releasing lever f to the door f in theperipheralportion of the rotary ease Di Other plates P are securedadjustably to theworm-wheel inradial lines from the pivot-post m and atequal distances from each other inthe series extending around theworm-wheel and which also come into contaetsuccessively with thelatch-bolt-releasing dust-inclosing case is a transverse non-rotat ingshaft X, fixedly connected with the sides 'Mofsaid portion of the case,andupon which shaft isa circular casting X, the curved outer edgeportion of which is located in the pathofthe cam'f on the door and closeenough in position to said doorwhenopento efiiect an engagement of thelatch-bolt f with the free edge'of the door.

R is the feed-hopper on the outside of the dust-inclosing ease andelevated the proper height'to receive and distribute the grain to thescouring-case D; In the bottom of the hopper are openings 1" forthepassage of the grain, each 'opening describing the segment of'acircle. Above and closing said openings is a wheel 01' valve 1', havingopenings W, describing segments of a circle alternate in position to theopeningsr. With the lower end of hoppei-R is connected the upper end ofa conductor or chute T the lower end of which chuteinclin'es toward andextends through the disk E on the side of the rotary case opposite tothat having the circular rack G.

Upon the With the axis of the wheel r is connected a shaft 7', whichextends downwardly through the bottom of chute W, and upon the lower endof said shaft is a crank 1 Upon the beam a a short distance toward theend of said beam from that having the shaft H, is a fixed upright postS, upon the upper end of which post is pivoted horizontally adouble-armed lever T, one arm of said lever being extended through aslot 6 in the side of the portion of the dust-inclosing case I andnearly'in contact with the side of the rotary scouring-case D. With theother end of said arm is connected a linkt which is also connected withthe crank r on the shaft 7, operating the wheel rin the feed-hopper B.On the side of the rotary case D and in the path of the inner portion ofthe doublearmed lever T, extending through the slot 25 in the side ofcase I, is a fixed curved guide plate or arm U, secured edgewi'se to theside of the said case by lugs u u on the inner edge of. the guide-plateU, the said guide-plate being in a line eccentric with the periphery ofcase D and situated upon a portion of the side of the case opposite tothat in which the door f is located for dropping the cleaned grain, theposition of said guide-plate being such asto permit the end of the guidenearest the axis of the case to throw the end of the lever in contacttherewith, also toward the axis of the scouring case, and consequentlythe action upon the link i and crank 7' will rotate the wheel r andclose the openings r in the bottom of the hopper R. Upon the same sideof the case D and opposite thereto in position is a separate curvedslotted plate or cam V, secured to the spokes d by adjusting-screws oand with one end in a position nearer the axis of the case D than theother. Upon the upright beams 11 at the end of case A having shaft H andjournaled in the boxes to w a short distance above the line of the endsof the beams a a is a transverse shaft W, upon one end of which shaft,beyond the side of the frame A, is a smallsized belt-pulley W, overwhich extends one end of a belt 10 the other end of which belt isextended over the pulley h on the shaft H and the ends connectedtogether in the usual manner, said pulley it being larger .in size thanthe pulley W. On the said shaft W is also secured close in position tothe pulley W" a pulley w, nearly twice the size of the pulley V. Overthe pulley 20 is extended one end of a belt 10 the other end of whichbelt is twisted once and extended over the small pulley b on the end ofshaft B and the two ends connected together in the usual manner.

Upon the other end of the shaft B from that having the pulley bis alarge band-wheel 13, over which is extended one end of a belt batheother end of said belt being extended to and over the pulley upon theshaft of the engine conveying power to shaft B, (not shown,) and whichends of the belt are seand thence to the shaft W, and from shaft W aslower degree of speed is communicated through the small pulley W andthrough the belt to to the pulley H on the shaft H, which shaft actuatesthe pinion h, meshing with the rack G on the case D, and the said caseis,

rotated in the same direction as the scouring-wheelC at a very slowdegree of speed, approximating to several revolutions per minute.

In the rotation of the case D and when the pins 01 upon the portion ofthe rim (1 strike the arms 01 on the hub n of the shaft N the worm nwill actuate the worm-wheel 0, which turns upon its pivot at a slowdegree of speed, it being apparent that in order, that the wormwheelshall move a distance upon the line of the radius past the lever f equalto the distances between the outertends of adjacent tripping-plates P onthe worm-wheel the case D will describe approximately four revolutions.The uncleaned grain to be scoured is fed or conveyed to the hopper R,the said hopper containing the approximate amount of grain which can betreated within certain intervals of time, the door f in the case D forthe purpose of illustration being closed and the wheel r in the hopper Rturned to admit the grain to the scourer, as in the position in Fig. 4of the drawings. In this position the inner end of the lever 'l is uponthe inner side of the guide U and at the end farther removed from theaxis of the case D. As the wheel continues to revolve the end of thelever is thrown inwardly toward the axis of the said case, closing theopenings 1" in the hopper, which openings, remain closed until the endof the lever meets the outer edge of the guide V at a point a shortdistance from the end of said guide closest in proximity to the axis ofthe case D, when the arm is th rown in an opposite direction and theopenings exposed in the hopper to admit another charge to thescouring-case, this reciprocal movement of the end of the leverbeing'repeated at each rotation of the said case D. The grain admittedto the chute 9' falls by gravity within the space f between the sides ofthe scouring-wheel C and case D and upon 4 reaching the part of saidcase D lowest in position is immediately carried upward by the movementof said'case D and scattered over the periphery of the scouring-wheelandinto the space between the sides of said wheel 0 and case D. Theuncleaned grain in this condition is brought into contact with the sidesof the scouring-wheel C and within the centrifugal air-currents caused'by the rotation of wheel C. The grain coming in, contact with thestonencausestheremoval thrown from the'stone, as wellas caused by theattrition of the grain on "the sto ne, mix

with the centrifugal air-currents and impart a scouring action to thegrain. As soon- I as the: charge of grain has been subjected to thescouring the interval :of timearequired: by" the rotation of shaft N tobring one crane plates Pin the path of themlatch-bolt-releasinguleverfthexrsaid.=lever is' thrown -up wardly, so as toirelease the latch andatthe same time avoidfurlher contact=With the bar P,and thezfree end ofthe door f falls out wardly and downwardly, and the secured grainfallsinto "the bottom of ltheportion I of l the-dust-inclosing case Inthe next quarter of the circle of rotation-of case E:the' cam'f?" meetsthe casting or obstruction cc' andthe door is closed automatically,vandthelatch bolt also latches :the free=end of the door. The operationasdescribedin detail of feed-" ing the grain to the scouring-case isthen repeated, the number of rotations ofthe scouring-wheel and case D:being performed in which to eifectually. scour the grain during the timerequired for the movemen t of the worm-wheel, solasto bring the nexttrippin g-' plate P in position in the path of the lever on. thelatch-bolt on the door f when thescoured grain isejected as before." Inorder,"

' however, to increase the length of time in which the grain is to betreated, a lesser num ber of plates P are-required, and to'effect thisresult the adjusting-screws pare released in every other plate P and thesaid plates moved back from contact with the lever on the latch-bolt andthe plates secured in the adjusted position, leaving a wider spacebetween the adjacent plates. When required, the number oflplates may beincreased, so as to cause a more'rapid discharge of the grain. In myimproved scourer I ef-' feet a thoroughly-cleaned grain, especially atthe endslof eachkernel, affordingthe -removal of all of the externalchafi andbran; which is forced during the operation through theperforations in the case As the stone 0 decreases in circumference fromthe wear in the scouring process I effect the reduction of the sides ofcase D, so asto keep the same width of space betweeu theportion f ofsaid case andthe periphery of stone 0, by cutting away the outer edgeofthe-rim d circumferentially in a corresponding degree to the wear of thestone. The scouring may be done either with a sandstone wheel or a I'ities are all'removed and the cleaned grain superior than *liithertoobtained by other recesses.

4 It isobviou's that changes may be made within the scope of the"invention of the devices for operating the worm-wheel and also feedingthe unclean grainto the perforate case,-andtl1ereforeI do not wish to.be um ited "to the exactdetails of l the various constructions;

j Having fully describedi'ny invention, what I now claim as'newyranddesireto secure by Letters Patent, is 1. In a grain-scourer comprising agrainscouring rotary wheel and its driven shaft, anindependently-rotatinggraimscouringperforate case extending around saidgrain-scour ing wheel, having an opening for the reception of theuncleaned grain in the end of said case, and a separate openingforthedischarge of the scoured grain in the side of-said. case, adoor-to said latter opening hinged tothe said -case,a self fasteningdevicefor said door upon said case,a cain "on said door, and adoor-closing device upon a suitable fixed support in the path ofthe camon said door.

1 2. In agrain-scoureryth combination with the main frame of agrain-scouring wheel and its driven shaft, an independently-rotatinggrain-receiving case extending around said scouring-wheel, having anopening for the reception of the uncleanedgrain, and a separatedischarge-opening, a door to said latter opening hinged to said case,- aself-fastening device to said door upon-said case, means substantiallyas described 'for rotating said scouring-wheel and case at difierentdegrees of speed, and mechanism substantially as described upon saidframe controlling the unfastening automatically of the fasteningdeviceto said door.

3. In a grain-scourerythe combination with the main frame of agrain-scouring wheel and its driven shaft, an independently-rotatinggrain-receivingcase" extending around said scouring-wheel; having anopening for the reception of the unc'leaued grain,vand aseparatedischarge opening, a doorto said latter opening hinged to saidcase,- and a self-fastening device for said door upon said case,

means for rotatingsaid scouring-wheeland case simultaneously andatdiderent degrees ing grain-receiving case, extending around saidscouring-Wheel, having an opening for the reception of the uncleanedgrain, and a separate discharge-opening, a door to said latter openinghinged to said case, a latch-bolt upon said case, and a tripping deviceupon said frame in the path of the latch-bolt.

5. The combination with a suitable frame of a rotary ease journaledthereon, having a suitable discharge-opening, and a door thereto, hingedto said case, a self-acting door-fastening latch secured to said case, ashaft near the periphery of said case, a worm-gear on said shaft, aWorm-Wheel actuated by the wormgear, power-conveyors connecting the saidcase with the said shaft, and latch-operating devices upon theWorm-wheel in the path of and intermittently releasing the said latch,

and means substantially as described for rotating said case.

6. The combination With a suitable frame,

of a rotary case having a suitable frame, of

a rotary case having a suitable dischargeopening and a door thereto,hinged to said case, a Selfacting door-fastening device secured to thesaid case, means for rotating said case, a shaft near the periphery ofsaid case, poWer-conveyersconnecting said shaft and case adapted toimpart intermittent rotation to the shaft, a Worm upon said shaft, aworm gear-Wheel actuated by said Worm-gear and adjustable radial platesupon said Wormwheel, in the path of and adapted to contact with andrelease the fastening device to the door upon said rotary case.

7. In a grain-scourer, a suitable frame, a rotary, perforate case, and agrain-scouring device Within said case, said case having a suitableopening for the reception of the uncleaned grain, and adischarge-opening, a door to said latter opening hinged tosaid case, alatch-bolt on said case for said door, a lever operating said bolt, acam on said door, a power-driven shaft near the periphery of said case,power-conveyors connecting said shaft and case, a separate shaft nearthe said periphery of said case, a hub on said shaft, radial arms onsaid hub, and pins on the side ofsaid case, adapted to contact with saidradial arms, a worm on said shaft having said .radial arms, a Wormgear-Wheel actuated by said Worm, plates upon the said Worm-Wheeladapted to come into contact with the lever operating the latch-bolt onsaid door, in the circle of rotation of the worm-wheel, and'a stationarydoor-closing device upon the other side of the frame, in the path of thecam on said door.

8. The combination with a suitable frameof a rotary case having asuitable dischargeopening and a door thereto hinged to said case,aself-acting door-fastening device secured to said case, means forrotating said case, a shaft near the periphery of said case, a hub onsaid shaft, and radial arms on said h ub,a worm upon said shaft and aWorm gear- Wheel actuated by said worm-gear,adj ustable radial platesupon the said Worm-wheel in the path of and adapted to contact with andrelease the fastening device to the door upon said rotary case, and pinsupon the side of said case adapted to come into contact with the radialarms on said shaft and communicate an intermittent rotary motion to saidshaft.

9. The combination with a rotary case having an annular opening in itsside and at its aXis, for the reception of the material to be treatedand a valve discharge-opening, a hopper, a valve in said hopper,aconductor leading from said hopper to the said annular opening, a leverconnected at one end With said valve, and cams upon one side of saidcase, adapted to come into contact With the other end of said leveralternately and also alternatelyopen and close the valve in said hopper.

10. The combination with a rotary grainscouring case, provided withaxial annular flanges and its supporting-frame, of disks secured to theinner sides 'of said frame, and provided with annular flanges serving asbearings for the flanges on thesaid case, a hopper a valve in saidhopper, a conductor connected With said hopper and extending through oneof the said disks, a crank-shaft connect-I95 ed with said valve in saidhopper, a support upon said frame, a pivoted lever upon said supporthaving one end extending in the di rection of the side of said rotarycase and a link connecting said crank-shaft and the other end of saidlever and curved guides upon the side of said case opposite in position,in eccentric planes adapted to contact alternately with the end of thesaid lever.

' OKE A. SHONBEOK.

Witnessesz.

GILBERT J. CLARK, J. B. ARTHUR.

I do

